{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T14:23:25Z","timestamp":1780410205645,"version":"3.54.1"},"reference-count":25,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2018,9,23]],"date-time":"2018-09-23T00:00:00Z","timestamp":1537660800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["No. 61705025, 61307104, 61405044"],"award-info":[{"award-number":["No. 61705025, 61307104, 61405044"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100013084","name":"Program for Innovation Team Building at Institutions of Higher Education in Chongqing","doi-asserted-by":"publisher","award":["CXTDX201601034"],"award-info":[{"award-number":["CXTDX201601034"]}],"id":[{"id":"10.13039\/501100013084","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100019085","name":"Chongqing Municipal Key Laboratory of Institutions of Higher Education","doi-asserted-by":"publisher","award":["Grant No. [2017]3"],"award-info":[{"award-number":["Grant No. [2017]3"]}],"id":[{"id":"10.13039\/501100019085","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Program of Chongqing Development and Reform Commission","award":["Grant No. 2017[1007]"],"award-info":[{"award-number":["Grant No. 2017[1007]"]}]},{"name":"Science and Technology Project Affiliated to the Education Department of Chongqing Municipality","award":["No. KJ1710238, KJ1710247, KJ1725391"],"award-info":[{"award-number":["No. KJ1710238, KJ1710247, KJ1725391"]}]},{"name":"Fundamental Research Funds for Chongqing Three Gorges University of China","award":["No. 16PY13, 16QN16"],"award-info":[{"award-number":["No. 16PY13, 16QN16"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Micro-displacement measurements play a crucial role in many industrial applications. Aiming to address the defects of existing optical-fiber displacement sensors, such as low sensitivity and temperature interference, we propose and demonstrate a novel surface plasmon resonance (SPR)-based optical-fiber micro-displacement sensor with temperature compensation. The sensor consists of a displacement-sensing region (DSR) and a temperature-sensing region (TSR). We employed a graded-index multimode fiber (GI-MMF) to fabricate the DSR and a hetero-core structure fiber to fabricate the TSR. For the DSR, we employed a single-mode fiber (SMF) to change the radial position of the incident beam as displacement. The resonance angle in the DSR is highly sensitive to displacement; thus, the resonance wavelength of the DSR shifts. For the TSR, we employed polydimethylsiloxane (PDMS) as a temperature-sensitive medium, whose refractive index is highly sensitive to temperature; thus, the resonance wavelength of the TSR shifts. The displacement and temperature detection ranges are 0\u201325 \u03bcm and 20\u201360 \u00b0C; the displacement and temperature sensitivities of the DSR are 4.24 nm\/\u03bcm and \u22120.19 nm\/\u00b0C, and those of the TSR are 0.46 nm\/\u03bcm and \u22122.485 nm\/\u00b0C, respectively. Finally, by means of a sensing matrix, the temperature compensation was realized.<\/jats:p>","DOI":"10.3390\/s18103210","type":"journal-article","created":{"date-parts":[[2018,9,24]],"date-time":"2018-09-24T10:38:49Z","timestamp":1537785529000},"page":"3210","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Surface-Plasmon-Resonance-Based Optical-Fiber Micro-Displacement Sensor with Temperature Compensation"],"prefix":"10.3390","volume":"18","author":[{"given":"Yong","family":"Wei","sequence":"first","affiliation":[{"name":"Chongqing Municipal Key Laboratory of Intelligent Information Processing and Control of Institutions of Higher Education, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"},{"name":"College of Electronic &amp; Information Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ping","family":"Wu","sequence":"additional","affiliation":[{"name":"College of Electronic &amp; Information Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3997-4342","authenticated-orcid":false,"given":"Zongda","family":"Zhu","sequence":"additional","affiliation":[{"name":"National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lu","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Physics, Harbin Institute of Technology, Harbin 150001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunlan","family":"Liu","sequence":"additional","affiliation":[{"name":"Chongqing Engineering Research Center of Internet of Things and Intelligent Control Technology, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiangxi","family":"Hu","sequence":"additional","affiliation":[{"name":"College of Electronic &amp; Information Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shifa","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Electronic &amp; Information Engineering, Chongqing Three Gorges University, Wanzhou, Chongqing 404100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yonghui","family":"Zhang","sequence":"additional","affiliation":[{"name":"Basic Medicine Department, Chongqing Three Gorges Medical College, Wanzhou, Chongqing 404100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2018,9,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"398","DOI":"10.1016\/j.optcom.2007.01.040","article-title":"A simple temperature-insensitive fiber Bragg grating displacement sensor","volume":"273","author":"Ng","year":"2007","journal-title":"Opt. 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